Yes, Steinbeck Wrote a Werewolf Novel. Donât Expect to Read It. A scholar of American literature at Stanford says itâs worth publishing. The agents representing the Steinbeck estate strongly disagree. Credit...Hulton-Deutsch Collection/Corbis via Getty Images May 27, 2021 Nine years before John Steinbeck published his Pulitzer Prize-winning historical masterpiece, âThe Grapes of Wrath,â he was working on a lighthearted detective novel featuring a werewolf. The manuscript, âMurder at Full Moon,â was completed in 1930 but was never published. A single copy has been...